I got mine from a previous user that was doing a lot with it. Has a Fiago brushless main/ 7A esc. It is one of the first 4G3s.

I can flip it, roll, hover inverted, and fly inverted. It is somewhat hard, but becuase I'm fluent with larger helis, it's not bad. Sorry no vids yet. I have only done 3D outside, but as I become more comfortable will try large indoor rooms to invert it.

yesterday i went seperates on my 4g3 with gws ics100e and 50e brushed motor escs,esky 0704a gyro and TheSteve modified ar6300 receiver.
dx7 transmitter gives a lot more confidence, i will try to flip it when the weather gets better. cant dare to flip it with stock tx,i cant make it work.

I`ve done loops, rolls and inverted no problems but cant get the pitch right. If i give too much negative on idle up its doing insane inverted piro`s lol even though she is perfect in every other sense. Desaprate to get the spektrum reciever in. Any one had success on a one cell with the ar6300 as i`d love to do more but lack confidence in the stock tx. Please help....i`ll reward you with vids....

I never tried any loops or flips or rolls with my full brushless 4g3 because it was the middle of winter when i had it like that but this past spring i put it back to full brushed stock motors because of the esc's i had quit working. I took it outside and did some flips and rolls with it and it was pretty easy. I just wish i had tried it when full brushless. But now i dont have a 4g3 because i got tired of it and sold it.

Im still not satify with the pitch setup in indle mode, and had crash it more than 2 times. Yeap, I using TX WK-2601 and found it quite difficult have a good pitch control in in idle mode. Tail often wag due to fast rpm. Might want to get 2801 one day.
But today, I set the thro curve between 60% to 70%, the tail seem to hold better. Full control of EXP, DIP11 V2 -30%, V1 -1 click.
Try 2 time forward flip, a fast one but nice to see its work

Performance with the 4g3 is pretty good. I believe the thing it needs most, even more than the convenience of the 2801, is a HH gyro.

I set mine up meticulously but when the tail is trimmed for upright hover it is very difficult to get the exact same pitch and rpm for inverted hover....meaning you have to be a master of the tail inverted to pull it off. I am not!

Have rolled and flipped it many times but sustaining inverted flight with my tail skills is difficult.

If you have a sim, fly your heli inverted with a bunch of right rudder trim. The constant CCW rotation will really get you up to speed on controlling the tail while inverted. Just letting the heli slowly rotate on axis and keeping it in one spot is also great practice.